CLIR (ClearSign Technologies Corporation Common Stock (DE))
Insider Trading Activity
Every open-market purchase and sale reported by CLIR officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-24 | JOHN M PASQUESI | 10%+ Owner | Buy | — | — |
| 2026-07-02 | Gil Todd Silva | Director | A | — | — |
| 2026-07-02 | Lou Basenese | Director | A | — | — |
| 2026-07-02 | ANTHONY DIGIANDOMENICO | Director | A | — | — |
| 2026-04-27 | Colin James Deller | Chief Executive Officer | MIXED | — | — |
| 2026-04-27 | Gil Todd Silva | Director | Buy | — | — |
| 2026-04-02 | Lou Basenese | Director | A | — | — |
| 2026-04-02 | ANTHONY DIGIANDOMENICO | Director | A | — | — |
| 2026-04-02 | Gil Todd Silva | Director | A | — | — |
| 2026-03-19 | Gil Todd Silva | Director | Buy | — | — |
| 2026-03-02 | Colin James Deller | Chief Executive Officer | MIXED | — | — |
| 2026-03-02 | Brent Hinds | Chief Financial Officer | MIXED | — | — |
| 2026-02-24 | Brent Hinds | Chief Financial Officer | MIXED | — | — |
| 2026-02-04 | Brent Hinds | Chief Financial Officer | MIXED | — | — |
| 2025-10-03 | Lou Basenese | Director | A | — | — |
| 2025-10-03 | Gil Todd Silva | Director | A | — | — |
| 2025-07-03 | David M Maley | Director | A | — | — |
| 2025-07-03 | Gil Todd Silva | Director | A | — | — |
| 2025-07-03 | Lou Basenese | Director | A | — | — |
| 2025-07-03 | Catharine de Lacy | Director | A | — | — |
| 2025-07-03 | Judith S Schrecker | Director | A | — | — |
| 2025-05-27 | Lou Basenese | Director | A | — | — |
| 2025-04-03 | Judith S Schrecker | Director | A | — | — |
| 2025-04-03 | David M Maley | Director | A | — | — |
| 2025-04-03 | Catharine de Lacy | Director | A | — | — |
| 2025-04-03 | Gil Todd Silva | Director | A | — | — |
| 2025-02-25 | Brent Hinds | Chief Financial Officer | MIXED | — | — |
| 2025-02-24 | Brent Hinds | Chief Financial Officer | MIXED | — | — |
| 2025-02-24 | Colin James Deller | Chief Executive Officer | MIXED | — | — |
| 2025-02-21 | Brent Hinds | Chief Financial Officer | MIXED | — | — |
| 2025-01-06 | Catharine de Lacy | Director | A | — | — |
| 2025-01-06 | Judith S Schrecker | Director | A | — | — |
| 2025-01-06 | Gil Todd Silva | Director | A | — | — |
| 2025-01-06 | David M Maley | Director | A | — | — |
| 2024-10-03 | David M Maley | Director | A | — | — |
| 2024-10-03 | Catharine de Lacy | Director | A | — | — |
| 2024-10-03 | Gil Todd Silva | Director | A | — | — |
| 2024-10-03 | Judith S Schrecker | Director | A | — | — |
| 2024-08-05 | Gil Todd Silva | Director | A | — | — |
| 2024-07-03 | David M Maley | Director | A | — | — |
| 2024-07-03 | Judith S Schrecker | Director | A | — | — |
| 2024-07-03 | Catharine de Lacy | Director | A | — | — |
| 2024-06-26 | clirSPV LLC | 10%+ Owner | Buy | — | — |
| 2024-04-25 | David M Maley | Director | A | — | — |
| 2024-04-10 | Brent Hinds | Chief Financial Officer | A | — | — |
| 2024-04-02 | Robert Thurston HOFFMAN Sr | Director | A | — | — |
| 2024-04-02 | Judith S Schrecker | Director | A | — | — |
| 2024-04-02 | Catharine de Lacy | Director | A | — | — |
| 2024-02-26 | Colin James Deller | Chief Executive Officer | F | — | — |
| 2024-02-26 | Brent Hinds | Chief Financial Officer | — | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | 10%+ Owner | 1,343,477 | — |
| — | 10%+ Owner | 977,732 | — |
| — | 10%+ Owner | 620,301 | — |
| — | Director | 60,332 | — |
| — | Director | 60,332 | — |
| — | Chief Marketing Officer | 42,525 | — |
| — | Director | 38,150 | — |
| — | Chief Executive Officer | 31,466 | — |
| — | Chief Financial Officer | 20,604 | — |
| — | Chief Executive Officer | 17,125 | — |
| — | Chief Financial Officer | 17,082 | — |
| — | Director | 12,367 | — |
| — | Chief Executive Officer | 11,395 | — |
| — | Director | 10,794 | — |
| — | Director | 10,000 | — |
| — | 10%+ Owner | 9,583 | — |
| — | Director | 8,152 | — |
| — | Chief Technology Officer | 7,483 | — |
| — | Director | 7,250 | — |
| — | See Remarks | 5,271 | — |
| — | Director | 5,000 | — |
| — | Chief Operating Officer | 3,287 | — |
| — | See Remarks | 2,569 | — |
| — | Chief Financial Officer | 1,007 | — |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the CLIR quote page; the site-wide leaderboard is on the insider transactions hub.